Valve.



W. M. SAEFKEL.

VALVE.

APPLICATION FILED mm: 13, 1912.

1,069,188. Patented g- 5, 1913.

Attorneys oNiTEn STATES PATENT onnion.

WILLIAM M. SAEFKE, OF MILWAUKEE, WISCONSIN.

To all whom it may concern:

Be it known that I, l/VILLIAM M. SAEFKE, a citizen of the United States,residing at Milwaukee, in the county of Milwaukee and State ofVisconsin, have invented a new and useful Valve, of which the followingis a specification.

The present invention relates to improvements in valves, the primaryobject of the invention being the provision of a novel form of balancevalve more commonly known as a pressure reducing valve, the same beingprovided with a removable valve bushing and combined balance valve andpiston disposed in coactive relation with the bushing.

lVith the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the c0mbinatio-n andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed without departing from the spirit of theinvention.

In the drawings Figure 1 is a vertical sectional view through the valvecasing and the spring casing thereof with the valve in closed position.Fig. 2 is a detail sectional view of the valve bushing removed. Fig. 3is a detail view of the balance valve and piston removed.

Referring to the drawings, the numeral 1 designates the valve casingwhich is provided with the partition 2 having the horizontally disposedannular band 3, with the annular shouldered portion 4: for the receptionof the removable valve bushing 5, which is provided with the annular rim6 to fit within the annular shoulder 4 and thereby properly support thebushing in the position as shown in Fig. 1. This bushing is providedwith the circumferentially disposed apertures or ports 7 which aredisposed in line with the port 8 of the partition 2 and with theinclined valved seat 8 at the lower end. The upper end of the bushing 5is disposed within the collar 9 which is formed integral with the casing1 and provides a receptacle for properly positioning the bushing inplace and to which the spring casing 10 is attached, as clearly shown.By this means the flange 11 and bolts 12 properly lock the spring casing10 Specification of Letters Patent.

Application filed June 13, 1912.

Patented Aug. 5,1913.

Serial No. 703,586.

upon the upper end of the sleeve 9 and thus lock the bushing 5 in place.

Disposed for vertical reciprocatory movement within the bushing 5 is thecombined balance valve and plunger 15 carrying upon its lower end thedisk 16 whose inclined peripheral edge forms a valve with the valve seat8 of the bushing 5. The ports 16 are provided in the lower end of thecombined balance valve and plunger 15, while the ports 18 are providedcircumferentially of the combined balance valve and plunger in a linejust below the lower. face of the plunger 17. The plunger 17 is providedwith the packing rings 19 to provide a tight joint within the upperportion of the bushing 5.

In order to normally hold the combined balance valve and the plungerdownwardly, and consequently the valve carried upon the lower endthereof, off of the valve seat 8 of the bushing 5, a coiled spring 20 isdisposed within the chamber of the casing 10 and is provided with thedisk 21 which is controlled by the adjusting screw 22. By this means thetension of the spring may be reg ulated as desired.

From the foregoing description, taken in connection with the drawings itis evident that the combined balance valve and piston is normally heldin open position by means of the spring 20 and as the high pressuresteam enters the inlet port, there is a jacket provided to surround theremovable valve bushing 5 within the body of the main valve casing, sothat the steam can enter through the ports 71S into the chamberedportion of the balance valve and exhaust through the ports 16 thereofthe valve 16 being unseated, into the casing 1. Should the pressureincrease so that the combined balance valve and piston will be movedupwardly against the tension of the spring 20, the valve 16 carried bythe balance valve is seated upon the valve seat 8 closing the ports 16and moving the ports 18 out of registration with the ports 7. Thepressure required to seat the balance valve is regulated entirely by thetension of the spring 20 due to its adjusting screw 22 and the disk 21.As soon as the pressure has been reduced, the spring 20 will againunseat the valve and permit the entrance of the pressure fluid withinthe chamber of the balance valve and again into the casing 1.

hat is claimed is:

1. A. pressure regulator valve, having a bodily removable bushing andvalve member, said bushing having ports intermediate of its end and avalve seat upon its inner end while the valve member is a chambered cylinder, one end of which is a piston slidably fitting in the bushing andthe other end of which has a circumferential rim constituting a valve tocooperate with the valve seat of the bushing, said valve member furtherhaving two series 01 ports at the respective ends of the chamber, oneseries being for registration with the ports of the bushing while theother series is disposed to be projected exteriorly of the valve seat ofthe bushing.

A removable bushing and piston valve for a pressure regulated valve inwhich the bushing has an inclined valve seat upon its lower rim and isprovided with a plurality of apertures through its wall intermediate ofits ends, and in which the piston valve is insertible within the bushingfrom the valve seated end thereof and has both ends sealed and isprovided with two series of apertures in the walls adjacent to therespective ends, the lower end of the piston valve being integral withthe wall of the valve and pro vided with an outwardly extending inclinedrim to correspond with the valve seat rim of the bushing to seal thelower end of the bushing, the apertures near the piston end being placedout of registration with the apertures of the bushing when the rims aretogether.

In testimony that I claim the foregoing as my own, I have hereto allixedmy si nature in the presence of two witnesses.

WILLIAM: M. SAEFKE.

\Vitnesses JOHN W. MORRIS, ALBERT C. NIENOCO.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, 1). G.

